Li-Ion lasts 3-5 years.
It better last longer than that. Well anyway I just checked the voltage on the battery in one of my 920's it is marked 09-99 and reeds 3.66 volts. The feb 08 replacement battery only reeds 3.63 volts.
Li-Ion lasts 3-5 years.
Why couldn't you go to Rat Shack and get a couple of two AA or AAA battery holders. ...
Here is discharge plot for Li-Ion battery 1580 mAh at 300 mA; you 'll have same V curve for 920 receiver but much longer as the current will be a few mA.
Did the battery swap work out for you lonewolf85?